Servicing airplane on hemlock looper control project. Clatsop County, Oregon.
Photo by: Robert L. Furniss
Date: June 15, 1945
Credit: USDA Forest Service, Pacific Northwest Region, State and Private Forestry, Forest Health Protection.
Collection: Portland Station Collection; La Grande, Oregon.
To learn more about this photo collection see:
Wickman, B.E., Torgersen, T.R. and Furniss, M.M. 2002. Photographic images and history of forest insect investigations on the Pacific Slope, 1903-1953. Part 2. Oregon and Washington. American Entomologist, 48(3), p. 178-185.
For more information about this project see: archive.org/details/su1945ddt00unit
Craighead, F.C. and R.C. Brown. 1945. Summary of 1945 DDT investigations for control of forest insects with special reference to aerial applications. USDA Agricultural Research Administration, Bureau of Entomology and Plant Quarantine, Division of Forest Insect Investigations. 15 p.